Anti-falling carbon brush holder

Abstract

The utility model relates to the field of carbon brush holders, and discloses an anti-falling carbon brush holder which comprises a carbon brush box, a carbon brush body is arranged on the left surface of the carbon brush box, an adjusting assembly is arranged on the right surface of the carbon brush box, a positioning assembly is arranged on the front surface of the carbon brush box, and the adjusting assembly comprises a straight groove. A straight groove is formed in the right surface of the carbon brush box, a round rod is slidably connected to the inner wall of the straight groove, a clamping assembly is arranged on the left surface of the round rod, a disc is rotatably connected to the right surface of the carbon brush box, an arc-shaped groove is formed in the right surface of the disc, a limiting groove is formed in the right surface of the carbon brush box, and the adjusting assembly further comprises a handle. According to the utility model, through the cooperation of the adjusting assembly and the clamping assembly, the rotating disc can drive the first clamping plate and the second clamping plate to clamp and fix the carbon brush body from four directions at the same time, so that the clamping stability is ensured, the operation convenience is also considered, the time spent on installation work is reduced, and the efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of carbon brush holders, in particular to an anti-falling carbon brush holder. Background Art

[0002] In rotating electrical equipment such as motors and generators, carbon brush holders play a vital role. Their main function is to apply pressure to the carbon brushes that are in sliding contact with the commutator or collector ring surface through springs to ensure stable conduction of current between the fixed body and the rotating body. However, in actual operation, due to the influence of various external factors, carbon brushes are prone to loosening or falling off, which not only affects the normal operation of the equipment, but may even cause serious safety accidents.

[0003] After searching, Chinese patent announcement number: CN218335554U discloses a carbon brush holder that can prevent carbon brushes from falling off, including a base and a carbon brush box, the base is connected to a carbon brush box, a carbon brush is installed in the carbon brush box, and a volute spring is provided on one side of the carbon brush, a mounting seat is provided at the bottom end of the inner cavity of the carbon brush box, and a mounting groove matching the bottom end of the carbon brush is provided in the mounting seat, bolts are inserted at both sides of the front end of the carbon brush box, and the bottom end of the bolts is connected to an extrusion plate, the inner side surfaces of the two groups of the extrusion plates are attached to the outer surface of the carbon brush, and an extrusion mechanism is provided on the rear side of the inner cavity of the carbon brush box. The utility model drives the extrusion plate to move in the relative direction by rotating the screw rod, so as to realize the reinforcement of the front end position of the carbon brush, and the extrusion mechanism realizes the reinforcement of the rear end position of the carbon brush, the carbon brush is stably connected, not easy to fall off the carbon brush box, and has good practicality.

[0004] Although the device has certain improvements, when fixing the carbon brush on the carbon brush box, it is necessary to screw multiple sets of bolts and screws to fix the carbon brush, which is troublesome to operate. Therefore, an anti-falling carbon brush holder is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an anti-falling carbon brush holder, which aims to improve the problem that when fixing the carbon brush on the carbon brush box in the device, multiple sets of bolts and screws need to be screwed to fix the carbon brush, which is troublesome to operate.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-falling carbon brush holder, including a carbon brush box, a carbon brush body is arranged on the left surface of the carbon brush box, an adjustment assembly is arranged on the right surface of the carbon brush box, a positioning assembly is arranged on the front surface of the carbon brush box, the adjustment assembly includes a straight groove, a round rod is slidably connected to the inner wall of the straight groove, a clamping assembly is arranged on the left surface of the round rod, a disc is rotatably connected to the right surface of the disc, an arc groove is arranged on the right surface of the carbon brush box, and a limiting groove is arranged on the right surface of the carbon brush box.

[0007] As a further description of the above technical solution:

[0008] The adjustment assembly also includes a handle, the inner wall of the disk is elastically connected to the limiting block via a limiting spring, and the left surface of the handle is fixedly connected to the right surface of the limiting block.

[0009] As a further description of the above technical solution:

[0010] The clamping assembly comprises a connecting plate, which is elastically connected to a clamping plate 1 via a compression spring, a sliding rod is fixedly connected to the upper surface of the clamping plate 1, and a clamping plate 2 is fixedly connected to the left surface of the round rod.

[0011] As a further description of the above technical solution:

[0012] The right surface of the connecting plate is fixedly connected to the left surface of the round rod, one end of the compression spring is fixedly connected to the upper surface of the clamping plate, the other end of the compression spring is fixedly connected to the lower surface of the connecting plate, and the sliding rod passes through and is slidably connected to the upper surface of the connecting plate.

[0013] As a further description of the above technical solution:

[0014] The positioning assembly includes a positioning block, the rear end of the left surface of the positioning block is opened as a slope, the positioning block penetrates and is slidably connected to the front surface of the carbon brush box, the inner wall of the carbon brush box is elastically connected to the connecting block through a connecting spring, the left surface of the connecting block is fixedly connected to the right surface of the positioning block, one end of the connecting spring is fixedly connected to the front surface of the connecting block, and the other end of the connecting spring is fixedly connected to the inner wall of the front side of the carbon brush box.

[0015] As a further description of the above technical solution:

[0016] The straight groove is opened on the right surface of the carbon brush box, the round rod is slidably connected to the inner wall of the arc groove, the round rod is provided with four groups, the arc groove and the straight groove are opened in four groups, the four groups of round rods, arc grooves and straight grooves are arranged in a circular array with the center of the disc as the origin, the straight groove runs through the right surface of the carbon brush box, and the arc groove runs through the right surface of the disc.

[0017] As a further description of the above technical solution:

[0018] The limiting block penetrates and is slidably connected to the left surface of the disc, the handle penetrates the right surface of the disc, the right surface of the handle is set in a disc shape, and the outer wall of the handle fits the disc.

[0019] As a further description of the above technical solution:

[0020] The limit block is inserted into the inner wall of the limit groove, one end of the limit spring is fixedly connected to the right surface of the limit block, and the other end of the limit spring is fixedly connected to the inner wall of the right side of the disc.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by cooperating with the adjusting assembly and the clamping assembly, the rotating disc can drive the clamping plate 1 and the clamping plate 2 to clamp and fix the carbon brush body from four directions at the same time, which ensures the stability of the clamping while taking into account the convenience of operation, reduces the time spent on installation work, and improves efficiency.

[0023] 2. In the utility model, the carbon brush body to be installed can be initially fixed through the cooperation of the positioning block, the connecting block and the connecting spring, and the position of the carbon brush body can be limited, which is convenient for the subsequent operation of the adjustment component and the clamping component to firmly fix it, thereby enhancing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic front view of the three-dimensional structure of the overall device in the utility model;

[0025] Figure 2 It is a schematic side view of the three-dimensional structure of the overall device in the utility model;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure section of the carbon brush box in the utility model;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure section of the carbon brush box and the disc in the utility model;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the connecting plate and the second clamping plate in the utility model.

[0029] Legend:

[0030] 1. Carbon brush box; 2. Carbon brush body; 31. Disc; 32. Handle; 33. Limit spring; 34. Limit block; 35. Round rod; 301. Arc groove; 302. Straight groove; 303. Limit groove; 41. Connecting plate; 42. Sliding rod; 43. Compression spring; 44. Clamp one; 45. Clamp two; 51. Positioning block; 52. Connecting block; 53. Connecting spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 , Figure 2 , Figure 4 The utility model provides an embodiment: an anti-falling carbon brush holder, comprising a carbon brush box 1 for supporting a carbon brush body 2, a carbon brush body 2 is arranged on the left surface of the carbon brush box 1, the carbon brush body 2 is fixed in the carbon brush box 1, an adjustment component is arranged on the right surface of the carbon brush box 1, a positioning component is arranged on the front surface of the carbon brush box 1, the positioning component can preliminarily position the carbon brush body 2, the adjustment component comprises a straight groove 302, a round rod 35 is slidably connected to the inner wall of the straight groove 302, a clamping component is arranged on the left surface of the round rod 35, the clamping component can clamp and fix the carbon brush body 2, the adjustment component can change the position of the clamping component, a disc 31 is rotatably connected to the right surface of the carbon brush box 1, an arc groove 301 is opened on the right surface of the disc 31, the arc groove 301 and the straight groove 302 are aligned, a limiting groove 303 is opened on the right surface of the carbon brush box 1, and the limiting groove 303 is opened in a gear shape.

[0033] Reference Figure 1 , Figure 2 , Figure 4 The adjustment component also includes a handle 32. The inner wall of the disk 31 is elastically connected to the limit block 34 through a limit spring 33. The limit block 34 is configured in a gear shape and fits into the limit groove 303. The outer wall of the limit block 34 is chamfered. Even when there is a small difference in the angle, the limit block 34 can be inserted into the limit groove 303. The left surface of the handle 32 is fixedly connected to the right surface of the limit block 34, and the handle 32 can drive the limit block 34 to rotate.

[0034] Reference Figure 1 , Figure 4 , Figure 5The clamping assembly includes a connecting plate 41, which is elastically connected to a clamping plate 44 through a compression spring 43. The upper surface of the clamping plate 44 is fixedly connected to a slide bar 42. The clamping plate 44, the connecting plate 41, the compression spring 43 and the slide bar 42 are arranged in multiple groups, which are symmetrically distributed up and down with the center line of the disk 31. The clamping plate 44 can clamp and fix the upper and lower surfaces of the carbon brush body 2. The left surface of the round rod 35 is fixedly connected to a clamping plate 2 45. The clamping plate 2 45 can clamp and fix the front and rear surfaces of the carbon brush body 2. There are two groups of clamping plates 45, which are symmetrically distributed left and right with the center line of the disk 31. The thickness and width of the carbon brush body 2 are different, but the difference is small. The spacing between the clamping plate 44 and the connecting plate 41 is large, so when clamping, the clamping plate 44 will first contact the carbon brush body 2.

[0035] Reference Figure 1 , Figure 4 , Figure 5 The right surface of the connecting plate 41 is fixedly connected to the left surface of the round rod 35. When the round rod 35 moves, it will drive the connecting plate 41 and the second clamping plate 45 to move. One end of the compression spring 43 is fixedly connected to the upper surface of the first clamping plate 44, and the other end of the compression spring 43 is fixedly connected to the lower surface of the connecting plate 41. When the first clamping plate 44 contacts the clamping target, if the connecting plate 41 continues to move, it will squeeze the compression spring 43 to generate a reaction force. The reaction force of the compression spring 43 will push the first clamping plate 44 to clamp the target. The sliding rod 42 passes through and is slidably connected to the upper surface of the connecting plate 41, sliding longitudinally.

[0036] Reference Figure 1 , Figure 2 The positioning assembly includes a positioning block 51. The rear end of the left surface of the positioning block 51 is provided with an inclined surface. The positioning block 51 penetrates and is slidably connected to the front surface of the carbon brush box 1, and slides in the front-to-back direction to squeeze the inclined surface of the positioning block 51. The positioning block 51 will move toward the front and rear sides of the carbon brush box 1. The inner wall of the carbon brush box 1 is elastically connected to the connecting block 52 through a connecting spring 53. The left surface of the connecting block 52 is fixedly connected to the right surface of the positioning block 51. The connecting block 52 and the positioning block 51 will move synchronously. One end of the connecting spring 53 is fixedly connected to the front surface of the connecting block 52, and the other end of the connecting spring 53 is fixedly connected to the inner wall of the front side of the carbon brush box 1. When the connecting block 52 moves forward, it will squeeze the connecting spring 53 to generate a reaction force.

[0037] Reference Figure 1 , Figure 2 , Figure 4The straight groove 302 is provided on the right surface of the carbon brush box 1, and the round rod 35 is slidably connected to the inner wall of the arc groove 301. When the disc 31 rotates, the arc groove 301 will be driven to move, and the arc groove 301 will squeeze the round rod 35. The round rod 35 will move along the trajectory of the straight groove 302. There are four groups of round rods 35, and four groups of arc grooves 301 and straight grooves 302 are provided. The four groups of round rods 35, arc grooves 301, and straight grooves 302 are arranged in a circular array with the center of the disc 31 as the origin. The four groups of round rods 35 will be synchronously opened or closed as the disc 31 rotates. The straight groove 302 runs through the right surface of the carbon brush box 1, and the arc groove 301 runs through the right surface of the disc 31.

[0038] Reference Figure 1 , Figure 2 , Figure 4 The limit block 34 passes through and is slidably connected to the left surface of the disk 31, the handle 32 passes through the right surface of the disk 31, and the right surface of the handle 32 is set to be disc-shaped for easy rotation. The outer wall of the handle 32 fits the disk 31.

[0039] Reference Figure 1 , Figure 2 , Figure 4 The limit block 34 is inserted into the inner wall of the limit groove 303, which can limit the disc 31. One end of the limit spring 33 is fixedly connected to the right surface of the limit block 34, and the other end of the limit spring 33 is fixedly connected to the inner wall on the right side of the disc 31. When the limit block 34 moves to the right, it will squeeze the limit spring 33 to generate a reaction force.

[0040] Working principle: When the device is used, first insert the narrower side of the carbon brush body 2 into the carbon brush box 1 longitudinally. The inserted carbon brush body 2 will squeeze the inclined surface of the positioning block 51, and the positioning block 51 will open to the front and rear sides of the carbon brush box 1. The positioning block 51 will drive the connecting block 52 to move synchronously. When the connecting block 52 moves, it will squeeze the connecting spring 53 to generate a reaction force. The reaction force of the connecting spring 53 will clamp the carbon brush body 2 and fix it preliminarily. When the right end of the carbon brush body 2 contacts the inner wall of the right side of the carbon brush box 1, it stops moving.

[0041] The handle 32 is then pulled to the right to drive the limit block 34 to move to the right. The limit block 34 moving to the right will squeeze the limit spring 33 to generate a reaction force. The limit block 34 moving to the right will also disengage from the limit groove 303 to release the limit on the disc 31. After the limit is released, the handle 32 is turned to drive the limit spring 33, the limit block 34 and the disc 31 to rotate. The rotating disc 31 will drive the arc groove 301 to move around the center of the disc 31. The moving arc groove 301 will squeeze the round rod 35, so that the four groups of round rods 35 will shrink synchronously. The moving round rod 35 will drive the connecting plate 41 and the second clamping plate 45 to move synchronously. When the connecting plate 41 moves, it will drive the sliding rod 42, the compression spring 43 and the clamping plate 1 44 to move synchronously. Since the distance between the clamping plate 1 44 and the connecting plate 41 is greater than the difference between the width and thickness of the carbon brush body 2, The first clamping plate 44 will first contact the carbon brush body 2. At this time, the handle 32 is continued to be rotated to drive the round rod 35 to continue to move. The round rod 35 will drive the connecting plate 41 and the second clamping plate 45 to continue to move. When the connecting plate 41 continues to move, it will squeeze the compression spring 43 to generate a reaction force. The reaction force of the compression spring 43 will push the first clamping plate 44 to clamp the carbon brush body 2 until the second clamping plate 45 clamps the front and rear sides of the carbon brush body 2. Then, the handle 32 is stopped from being rotated and the handle 32 is released. The reaction force of the limit spring 33 will push the limit block 34 and the handle 32 to move to the left. The limit block 34 will be inserted into the limit groove 303 to limit the device and ensure the stability of the device. The device can clamp and fix the four sides of the carbon brush body 2 at the same time. The operation is relatively convenient and can ensure that the carbon brush body 2 is in the center position.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-falling carbon brush holder, comprising a carbon brush box (1), characterized in that: The left surface of the carbon brush box (1) is provided with a carbon brush body (2), the right surface of the carbon brush box (1) is provided with an adjustment assembly, the front surface of the carbon brush box (1) is provided with a positioning assembly, the adjustment assembly comprises a straight groove (302), the inner wall of the straight groove (302) is slidably connected to a round rod (35), the left surface of the round rod (35) is provided with a clamping assembly, the right surface of the carbon brush box (1) is rotatably connected to a disc (31), the right surface of the disc (31) is provided with an arc groove (301), and the right surface of the carbon brush box (1) is provided with a limiting groove (303).

2. The anti-falling carbon brush holder according to claim 1, characterized in that: The adjustment assembly also includes a handle (32), the inner wall of the disk (31) is elastically connected to a limit block (34) via a limit spring (33), and the left surface of the handle (32) is fixedly connected to the right surface of the limit block (34).

3. The anti-falling carbon brush holder according to claim 1, characterized in that: The clamping assembly comprises a connecting plate (41), wherein the connecting plate (41) is elastically connected to a clamping plate 1 (44) via a compression spring (43), the upper surface of the clamping plate 1 (44) is fixedly connected to a sliding rod (42), and the left surface of the round rod (35) is fixedly connected to a clamping plate 2 (45).

4. The anti-falling carbon brush holder according to claim 3, characterized in that: The right surface of the connecting plate (41) is fixedly connected to the left surface of the round rod (35), one end of the compression spring (43) is fixedly connected to the upper surface of the clamping plate (44), the other end of the compression spring (43) is fixedly connected to the lower surface of the connecting plate (41), and the sliding rod (42) passes through and is slidably connected to the upper surface of the connecting plate (41).

5. The anti-falling carbon brush holder according to claim 1, characterized in that: The positioning assembly comprises a positioning block (51), the rear end of the left surface of the positioning block (51) is provided with an inclined surface, the positioning block (51) penetrates and is slidably connected to the front surface of the carbon brush box (1), the inner wall of the carbon brush box (1) is elastically connected to the connecting block (52) via a connecting spring (53), the left surface of the connecting block (52) is fixedly connected to the right surface of the positioning block (51), one end of the connecting spring (53) is fixedly connected to the front surface of the connecting block (52), and the other end of the connecting spring (53) is fixedly connected to the inner wall of the front side of the carbon brush box (1).

6. The anti-falling carbon brush holder according to claim 1, characterized in that: The straight groove (302) is provided on the right surface of the carbon brush box (1); the round rod (35) is slidably connected to the inner wall of the arc-shaped groove (301); the round rod (35) is provided in four groups; the arc-shaped groove (301) and the straight groove (302) are provided in four groups; the four groups of the round rod (35), the arc-shaped groove (301) and the straight groove (302) are arranged in a circular array with the center of the disk (31) as the origin; the straight groove (302) penetrates the right surface of the carbon brush box (1); and the arc-shaped groove (301) penetrates the right surface of the disk (31).

7. The anti-falling carbon brush holder according to claim 2, characterized in that: The limit block (34) passes through and is slidably connected to the left surface of the disc (31), the handle (32) passes through the right surface of the disc (31), the right surface of the handle (32) is configured to be disc-shaped, and the outer wall of the handle (32) fits the disc (31).

8. The anti-falling carbon brush holder according to claim 2, characterized in that: The limit block (34) is inserted into the inner wall of the limit groove (303), one end of the limit spring (33) is fixedly connected to the right surface of the limit block (34), and the other end of the limit spring (33) is fixedly connected to the inner wall on the right side of the disc (31).

Images